G1's definitely a big inspiration (that's why Roadbuster got all his orange bits), but some characters will wind up being G1-er than others - Dion, for instance, is going to be 100% creamy G1. Also, I've nearly got some voyager G1 AoE Grimlocks ready!
First, Roadbuster is joined by fellow Wreckers, Bulkhead and Wheeljack.
Only minor alterations; Bulk's got a few details painted in, trans-blue covered and been given a kitbashed weapon based on the one Magnus gave him. Wheeljack has some color-tweaks in homage to Armada Wheeljack, who first introduced the idea of the character being a loner/warrior. His Autobrand is scarred, but his Wreckers badge is bright and proud - he's loyal to the Wreckers, not the 'bots.
Next up is Megatron.
Besides the obvious change of the trans-purple to grey, I've added almost a centimeter of spacer to his thighs, so he towers over foes. Fortunately, it didn't muck up his altmode. I'm a big fan of Megatron's Prime design - it manages to work in plenty of the G1 detail (the "grip" on his legs, for example), but it doesn't feel forced. Still gotta make him a Dark Saber.
A minor mod and a WIP - Ironhide has some additional deco and his arm cannons were lengthened with RotF Ironhide's guns - I like that asymmetrical look! Beside him is the complete, unpainted, cygar-smoking Kup, made from the aforementioned RotF Ironhide.
He's a little bit buff for a Kup, but the mold still feels like a decent fit. He has some sculpted on details to make him a bit Prime-er, and hands/laser musket made from Halo Megabloks bits - they're perfect for Cyberverse customs; a collection of hands, weapons, hinges and balljoints to use.
Finally, Wazzpinator.
I found his Targetmaster bits kinda clunky, and Wasp's too awesome to just be someone else's gun
With a megabloks bit at its core, he was given a handheld stinger and his black/yellow details.